feat: add SceneManager autoload with scene registry

ruf-der-pilze/project.godot

@@ -19,6 +19,7 @@ config/icon="res://icon.svg"
 
 MCPGameBridge="res://addons/godot_mcp/game_bridge/mcp_game_bridge.gd"
 NetworkManager="*res://scripts/network_manager.gd"
+SceneManager="*res://scripts/scene_manager.gd"
 
 [editor_plugins]
 

ruf-der-pilze/scripts/scene_manager.gd

@@ -0,0 +1,58 @@
+extends Node
+
+const SCENES := {
+	"tavern": "res://scenes/tavern.tscn",
+	"chamber": "res://scenes/chamber.tscn",
+	"entrance_hall": "res://scenes/entrance_hall.tscn",
+	"refectory": "res://scenes/refectory.tscn",
+	"library": "res://scenes/library.tscn",
+	"chapel": "res://scenes/chapel.tscn",
+	"cloister": "res://scenes/cloister.tscn",
+	"sanctum": "res://scenes/sanctum.tscn",
+}
+
+var _current_scene_node: Node = null
+
+
+func _ready() -> void:
+	NetworkManager.game_started.connect(_on_game_started)
+	# Defer until main.tscn and its CurrentScene node are in the tree.
+	# call_deferred is not sufficient here — autoloads init before the main
+	# scene. Connect to root.ready (fires once, after main scene is ready).
+	get_tree().root.ready.connect(_on_root_ready, CONNECT_ONE_SHOT)
+
+
+func _on_root_ready() -> void:
+	var args := OS.get_cmdline_args() + OS.get_cmdline_user_args()
+	var is_server := OS.has_feature("dedicated_server") or "--server" in args
+	if not is_server:
+		transition_to("tavern")
+
+
+func transition_to(scene_name: String) -> void:
+	var path: String = SCENES.get(scene_name, "")
+	var packed: PackedScene = load(path) if path else null
+	if packed == null:
+		push_error("[SceneManager] Scene not found: %s" % scene_name)
+		return
+	var container := get_node_or_null("/root/Main/CurrentScene")
+	if container == null:
+		push_error("[SceneManager] CurrentScene node not found in main.tscn")
+		return
+	if _current_scene_node != null:
+		_current_scene_node.queue_free()
+		_current_scene_node = null
+	_current_scene_node = packed.instantiate()
+	container.add_child(_current_scene_node)
+
+
+func _on_game_started() -> void:
+	print("[SceneManager] Spiel gestartet — chamber transition kommt im nächsten Feature")
+
+
+func _load_for_role(scene_name: String) -> void:
+	# my_id is only valid after NetworkManager._on_connected_to_server fires.
+	# Do not call before game_started — my_id will be 0 before that.
+	var role: String = NetworkManager.players.get(NetworkManager.my_id, {}).get("role", "player")
+	# TODO next feature: load dm variant when role == "dm"
+	print("[SceneManager] Role %s → %s (stub, not switching yet)" % [role, scene_name])